Mining-machine truck



C. P. FOLMAR MINING MACHINE TRUCK .I I l I I Il Filed oct. 1 2, 1921 f 4 CIM.: f o

.N @www Patented Apr. 6, 1926.A

l* UNIT-En S 41,579,411 .'PAT ors cEcIL PARKERFQLMAB, 'oFMRMINGHAMQALABAr/in, AssIGNon TQ fsULLIvAN MACHINERY COMPANY,v A CORPORATION OF MASSACHUSETTS.

'Y MI'NING-MACIINE TRUCKl Y t, yApplication led'pctober 12,1921.v i Seriallvli'e:I

To all whomt may concern: r

Be it known that I, Cnoin n n MAR, a citizen ofthe United States, residing at Birmingham, in the county otJeflerson Vand State of Alabama, have invented certain new and useful Improvements in Mining@ Machine Trucks, of which the followmgis v a full, clear, and exact specification.

e mining machine trucks ofthe type wherein itV isv desirable for purposes of. traction to l'reep the wheels close together substantially beneath the cent/er of gravityof p the I truck when the mining machine is thereon. Y

In vthe accompanying drawings I have shown for purposes of illustration ltwo embodiments which my invention may assume in practice.

In these'drawingsz- Fig. l is a sideelevation of a mining machine truck equipped with one form of l* f stantial distance in front of the truck frame.

my improvement.

Fig. 2 is a side elevation of another truck equipped with a modified -form of my improvement. t Y

Referring first to the illustrative form of my invention shown in Fig. l, it vwill be noted that I vhave there shown a mining machine truck 1 of'a rigid upstanding type extending a substantial distance in rear of the truck wheels 2 which, as in a usual construction, are for traction purposes disposed close together beneath the center of gravity of the truck when a mining machine, herein a machine 3 of the flexibly fed type, is mounted for transport thereon. As in a usual construction, driving connections, herein in the form of mechanism driving chains' 4, are also provided between the mining machine and the truck wheels, and a reel and driving mechanism 5and a cable guide 6 are carriedzon the rear end of the truck. y

In m improved construction, itcwill be noted t at t e rearend of the truck 1 is PARKER FOL?v inclined, herein bent, vupward. as indicated at 17 in such a manner: as, without decreasing the length of the truck y,andv therebyfcausingu congestionof the necessary `truckreel driving mechanism 5 and cable guiding mechf anism 6 and. further without .requiring AWider spacing ofthe Wheels 2',to 'enable'theV truck to move over a trackway pitching at relatively great inclinations, without conflict be'- tweenthe 'truck and the track,my improved construction enablingthe truck to be moved down anfincline and along the horizontal or up an incline from the horizontal ywithout the conflict which ,because of the truck length would otherwise resultin vderailing the machine, damage'to the machine or trackway,or injury-to the runners riding on the .,truck.' Attention is also ldirected to th'ef'fact that the cable reel 5 is vcarried'on, the rearwardlyf'extending portionfwhile'the cableguide' is carried on the upwardly inclinedend thereof,thereby making vit possible fora large reel to be 'used` without decreasing the clearT ance between the` top of'the reel and the mineroof.

7 In the form vof my invention shown in 'Fig 2, I have illustrated a truck 1 having a rear end of the same general construction but having an upwardly inclined front end 8'on a tiltable vmember 9 projecting `a sub- This construction is preferred as it permits free movement of the truck in either direction without conflict at either end of the truckl and possesses a further advantage in that the tiltable member 9 is thus enabled to present an easier means of ingress for the mining machine when, as indicated in dotted lines, the memberS is in loading position remainder of thetruck when the mining machine has been moved up over 'the same, the tilting member being tiltedv by theV machine into a horizontal position on the truck and held in that position during transport.

While I have in this application specifically described two embodiments which my invention'may assume in practice, it will be understood that theseforms of the same are shown for purposes of illustration and that the invention may be modified and embodied in various other forms without departing from its spirit or the scope ofthe appended claims.

Ahat I claim as new and desire to secure by Letters Patent is:

l. A mining machine truck comprising a rigid wheeled truck frame having front and rear wheels disposed close together, a rearwardly extending frame'portion extending a substantial distance in rear of said rear wheels and having` an upwardly inclined rear end, and a forwardly extending tiltable portion pivoted on the front end of said rigid frame and having a portion extending upwardly when the parts are in a position corresponding to that which they occupy when the machine is being transported thereon, said upwardly extending portion providing a. track upon which a mining machine may be run. L. Y

2. The combination with a mining niachine truck, of a tiltable machine receiving and guiding member pivoted thereon on a transverse axis and having its front end movable into Contact with the mine bottom and said front end upwardly inclined relative to the remainder of said member to form an inclined trackway in such manner as to reduce the angle of the loading surface on said end relative tothe bottom.

3. A mining machine truck comprising, in combination, running gear, and a mining machine supporting portion which assume)I during loading of a machine thereon a position inclined to the horizontal, said portion having top and bottom surfaces substantially parallel to each other and being upturned at its forward end whereby the top and bottom surfaces of said upturned portion make equal angles with the plaines of the remaining portions of said surfaces'.

4. A mining machine truck comprising,

in combination, wheels, and a machine load ing and supporting body supported on said wheels and having an upper surface comprising a portion normally supporting a mining machine during transport and, at 0pposite ends of said portion, portions whose upper surfaces are upwardly inclined, said several portions being so formed that their lower surfaces are in each case more nearly parallel to their upper surfaces than to the lower surfaces.

5. A mining machine truck comprising wheels, anda body supported thereon and adapted'to support a machine thereon, said body having upturned ends and havingan upper surface lower'at its central portion than at its ends. f

In testimony whereof I aflix my signature.

CECIL PARKER FOLMAR. 

